40243103 has 4 divisors (see below), whose sum is σ = 40902888. Its totient is φ = 39583320.

The previous prime is 40243079. The next prime is 40243111. The reversal of 40243103 is 30134204.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40243103 - 2¹⁰ = 40242079 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40243163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 329801 + ... + 329922.

It is an arithmetic number, because the mean of its divisors is an integer number (10225722).

Almost surely, 2^40243103 is an apocalyptic number.

40243103 is a deficient number, since it is larger than the sum of its proper divisors (659785).

40243103 is an equidigital number, since it uses as much as digits as its factorization.

40243103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659784.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 40243103 is about 6343.7451871903. The cubic root of 40243103 is about 342.6866242765.

Adding to 40243103 its reverse (30134204), we get a palindrome (70377307).

The spelling of 40243103 in words is "forty million, two hundred forty-three thousand, one hundred three".